ATTO Technology 2400C/R/D - Manual (Page 34)

i
ATTO Technology Inc. FibreBridge Installation and Operation Manual
Appendix A Cabling
ATTO FibreBridge SCSI ports connect SCSI storage devices into the Fibre Channel Storage Area Network
(SAN). Use an Ethernet connection to use the ATTO ExpressNAV interface.
Make sure all cables are anchored securely at both
ends with the proper connectors.
SCSI port connections
The FibreBridge supports a wide variety of SCSI
storage devices.
Each SCSI port is totally independent from the other
SCSI port. Each bus may support up to 15 devices and
each SCSI bus auto-negotiates the appropriate sync
rates with the connected devices. If slower devices are
mixed with faster devices, the bus communicates at
the rate of the slowest device.
Connect slower devices to one SCSI port and faster
devices to the other port.
Connect a SCSI connector from the SCSI device to a
SCSI port on the FibreBridge.
Check the type of cable, cable length limit and number
of devices recommended for each port.
Keep cable lengths as short as possible to ensure the
highest signal quality and performance. These cable
lengths include the wiring inside the devices.
Fibre Channel connections
Fibre Channel technology offers a variety of cabling
options. The type of cable required varies depending
upon the application, environment and distance.
Serial port connections
The ATTO FibreBridge supports remote service
operations over the RS-232 serial port using standard
terminal emulation software available with most
systems.
Connect a DB-9 crossover serial cable (null modem)
between the ATTO FibreBridge serial port and one of
the computer's serial COM ports.
A gender changer or DB-9 to DB-25 converter may be
needed depending on the cables being used.
Ethernet connections
The 10/100 BaseT Ethernet port provides remote
monitoring and management using the ATTO
ExpressNAV interface.
When you connect an Ethernet cable between the
FibreBridge and a 10/100Base-T connection, you may
need a crossover cable connecting directly to a
computer. The ATTO FibreBridge auto detects the
Ethernet speed by default.
Device type Cable limit
Ultra SCSI Single Ended (SE) 1.5 meters
Ultra2 SCSI Low Voltage Differential
(LVD) 12 meters
Ultra160 SCSI Low Voltage
Differential (LVD) 12 meters
Ultra320 SCSI Low Voltage
Differential (LVD) 12 meters
Cable
length
Cable type
Cable
size
FC
connector
Up to 175
meters
multimode fiber
optic
62.5
micron
LC
Up to 500
meters
multimode fiber
optic
50
micron
LC
Up to 13
meters
unequalized
copper
HSSDC-2